* Characteristics

* Bad cases

- Adhesive is not required.

- Momentary welding (0.1 s ~ 1 s)

- Clear and no transformation or corruption  of product surface.

- Cost reduction and mass production

- Excellent and rigid welding surface

- Easy to use

- Recyled materials are used.

- Resin that has differing chemical structure

- Foreign substance contamination

- Long distance between the horn and the  welding plane

- Inappropriately designed injection-molded parts